My Doctor and Other Lunatics

We once had a doctor called Boole Who hated to look like a fool. If his diagnosis was wrong His face grew so long It made me feel positively cruel. When I had a rash on my brain He thought I was going insane. But calamine cream Worked like a dream! So I shall use it again and again. Doctors have a difficult time, When patients won't toe the line. But we need our own voice And to make our own choice. We can't fit into another's design.